elasticsearch.yml example

elasticsearch.yml

name: ${HOSTNAME}

# The cluster should be named with the name of the AD domain
cluster:
  name: bldrprod-0.14.0
  routing:
    allocation:
      # As small as possible, very large performance hits during recovery
      concurrent_recoveries: 1

# Force all memory to be prealloced and locked, forcing JVM to never swap
bootstrap:
  mlockall: true

gateway:
  type: local
  # We will only start the cluster with n-1 nodes available. We wait 5 mins for all N to be available
  # If the number of nodes in the cluster changes, we MUST update this value
  recover_after_nodes: 3
  recover_after_time: 5m
  expected_nodes: 4

discovery:
  zen:
    ping:
      unicast:
        hosts: ['dm-essearchp101.bldrprod.local:9300', 'dm-essearchp102.bldrprod.local:9300', 'dm-essearchp103.bldrprod.local:9300', 'dm-essearchp104.bldrprod.local:9300']

index:
  # This combined with concurrent_recoveries  throttles recovery to have the least impact on performance
  # This does mean that recovery may be quite slow, but that is the sacrifice we're making to avoid bad perf
  shard:
    recovery: 
      concurrent_streams: 1

  # All of our snapshotting occurs via esindexer
  gateway: 
    snapshot_interval : -1

  # We have so many shards that we need to keep translogs relatively small for recovery
  # This does result in more frequent flushes. The default is 5000 and this is per index
  translog:
    flush_threshold: 1000

  # Defaults to 1024, but that is to small for very large portfolio pages
  query:
    bool:
      max_clause_count: 10240

  analysis :
    analyzer : 
      # This analyzer mimics verity behavior
      verity_tokenizer :
        type: pattern
        lowercase: true
        pattern: '(?:(?!\w).)+'
        stopwords: _none_ 
        flags: DOTALL
      # Analyzer is used for sorting multi-term fields
      lowercase_keyword :
        type : custom
        filter : [lowercase]
        tokenizer : keyword
      # IDOL TextMatch, PipeDelimited
      pipe_tokenizer :
        type: pattern
        lowercase: true
        pattern: '\|'
        stopwords: _none_ 
        flags: DOTALL
      # IDOL FullText
      fulltext_tokenizer :
        type : custom
        filter : [standard, lowercase, stop, porterStem]
        tokenizer : standard

path:
  logs: /opt/wsod/var/log/elasticsearch/
  work: /opt/wsod/var/work/elasticsearch/
  data: /opt/wsod/var/data/elasticsearch/